45173563617 has 96 divisors (see below), whose sum is σ = 76542651648. Its totient is φ = 23194349568.

The previous prime is 45173563579. The next prime is 45173563621. The reversal of 45173563617 is 71636537154.

It is not a de Polignac number, because 45173563617 - 2¹⁸ = 45173301473 is a prime.

It is a super-2 number, since 2×45173563617² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45173562617) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25768413 + ... + 25770165.

It is an arithmetic number, because the mean of its divisors is an integer number (797319288).

Almost surely, 2^45173563617 is an apocalyptic number.

It is an amenable number.

45173563617 is a deficient number, since it is larger than the sum of its proper divisors (31369088031).

45173563617 is a wasteful number, since it uses less digits than its factorization.

45173563617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1966 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 48.

The spelling of 45173563617 in words is "forty-five billion, one hundred seventy-three million, five hundred sixty-three thousand, six hundred seventeen".